GroundLink is a good car service app for the planners. Request a car for now or one in 2 weeks, and you can have one waiting for you when you land at the airport. With GroundLink, you'll no longer need to look for someone greeting you with a sign.
The app also provides discounts. Should you need a car at the last minute, GroundLink lets you track your ride.The app claims to be available in every U.S. city. It is also available in 110 countries. GroundLink has received $20 million in venture funding from Emigrant Capital. This free app is compatible with iPhone, iPod touch, and iPad, but requires iOS 5.0 or later. It is also available for Android. --Written by Katie Roof in New York--